我正在使用此示例
但是我想从后面的代码中绑定我的集合命令。所以基本上如何使用c#?
<StackPanel.Resources>
<src:LotsOfItems x:Key="data"/>
</StackPanel.Resources>
<ListBox Height="150" ItemsSource="{StaticResource data}"
VirtualizingStackPanel.VirtualizationMode="Recycling" />
答案 0 :(得分:0)
你去..
XAML
<Page
x:Class="VirtualizingStackPanelTest.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:VirtualizingStackPanelTest"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid Height="344" Width="475">
<Grid.RowDefinitions>
<RowDefinition Height="50" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Button Content="Button" Height="23" HorizontalAlignment="Left" Name="button1" VerticalAlignment="Top" Width="75" Click="button1_Click" />
<ListBox Grid.Row="1" Name="theList" VirtualizingStackPanel.VirtualizationMode="Recycling" Margin="0,0,37,0" Height="255" VerticalAlignment="Top" HorizontalAlignment="Right" Width="426" />
</Grid>
</Page>
背后的代码:
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238
namespace VirtualizingStackPanelTest
{
/// <summary>
/// An empty page that can be used on its own or navigated to within a Frame.
/// </summary>
public sealed partial class MainPage : Page
{
public MainPage()
{
this.InitializeComponent();
this.NavigationCacheMode = NavigationCacheMode.Required;
}
private void button1_Click(object sender, RoutedEventArgs e)
{
var items = new LotsOfItems();
this.Resources.Add("data", items);
theList.ItemsSource = (LotsOfItems)this.Resources["data"];
}
}
public class LotsOfItems : ObservableCollection<String>
{
public LotsOfItems()
{
for (int i = 0; i < 1000; ++i)
{
Add("item " + i.ToString());
}
}
}
}
<强>更新强>
对于ListBox上的Tapped事件,您可以使用以下
替换ListBox xaml代码 <ListBox Grid.Row="1" Name="theList" VirtualizingStackPanel.VirtualizationMode="Recycling" Margin="0,0,37,0" Height="255" VerticalAlignment="Top" HorizontalAlignment="Right" Width="426" Tapped="theList_Tapped" />
此更改的示例代码隐藏如下:
private void theList_Tapped(object sender, TappedRoutedEventArgs e)
{
if(theList.SelectedIndex >= 0)
button1.Content = theList.SelectedItem.ToString();
}
此致 Kajal